xfce4-clipman | clipboard history utility | Mehr ...
Clipman enables you to store and recall X selections, as well as GTK+ clipboard content. You can also define actions to be triggered by selecting some text pattern. . This package uses Xfce libraries but can be used without the Xfce panel and only requires a system tray (notification area).
xfce4-clipman-plugin | clipboard history plugin for Xfce panel | Mehr ...
Clipman enables you to store and recall X selections, as well as GTK+ clipboard content. You can also define actions to be triggered by selecting some text pattern. . This package contains the Xfce panel plugin.